secretary of state hillary clinton is talking to algeria's prime minister about the situation. the attack is reportedly revenge for algeria's support of france's operation in northern mali. algeria allowed french jets to use its air space in attacking al-qaeda-linked rebel groups there. >> we condemn in strongest terms the terrorist attack on british petroleum personnel and facilities at the in amenas, algeria earlier today. >> defense secretary leon panetta is calling the situation serious. several other countries have announced that they have citizens involved as well. >>> terrifying moments in london today. a helicopter crashed in the heart of the city during the morning rush hour. two people were killed and several more injured. cbs reporter rita nissan has the latest from london. >> reporter: a line of flames burned on a london street after a helicopter crashed into a crane during the morning rush hour. >> helicopter just come down. >> reporter: a commuter captured the chaos on his cell phone. >> bring the police! >> reporter: the chopper burst into flames, spun out of con